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NEETChemistryThermodynamics (C)

What is the equation for work (w) in the case of isothermal reversible expansion of an ideal gas?

Options

  1. Aw = P ex (V f - V i )
  2. Bw = –P ex (V f - V i )
  3. Cw = nRT ln(Vf/Vi)
  4. Dw = –nRT ln(Vf/Vi)

Correct answer

C. w = nRT ln(Vf/Vi)

Step-by-step solution

The equation for work in the case of isothermal reversible expansion is w = nRT ln(Vf/Vi).

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